How do you use "knock" in a sentence?

Please knock before entering the office. I accidentally knocked the vase off the shelf. There's someone knocking at the front door.

knock

Vocabulary Word BritishAmerican ★★★★☆ Common Neutral

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Meaning: To strike a surface to make a sound; to hit or bump into something

敲，敲打，碰撞

llamar, golpear, tocar

ノックする、叩く、ぶつける

노크하다, 두드리다, 부딪치다

Knock means to strike a surface, typically a door, to make a sound and attract attention. It can also mean to hit or bump into something accidentally. The word appears in many expressions like 'knock on wood' (for good luck) and 'knock it off' (stop doing something).

knock意味着敲击表面，通常是门，以发出声音引起注意。它也可以指意外撞到某物。这个词出现在许多表达中，如'knock on wood'（敲木头求好运）和'knock it off'（停止做某事）。

Knock significa golpear una superficie, típicamente una puerta, para hacer un sonido y atraer la atención. También puede significar golpear o chocar contra algo accidentalmente. La palabra aparece en muchas expresiones como 'knock on wood' (tocar madera para la buena suerte) y 'knock it off' (dejar de hacer algo).

knockは、通常はドアなどの表面を叩いて音を出し、注意を引くことを意味します。また、偶然何かにぶつかることも意味します。この言葉は「knock on wood」（幸運を祈って木を叩く）や「knock it off」（やめる）などの多くの表現に登場します。

Knock은 표면, 특히 문을 두드려 소리를 내어 주의를 끄는 것을 의미합니다. 또한 실수로 무언가에 부딪치거나 치는 것을 뜻하기도 합니다. 이 단어는 'knock on wood(행운을 빌며 나무를 두드리다)'나 'knock it off(그만하다)' 등 많은 표현에 사용됩니다.

Examples

Please knock before entering the office.
进办公室前请先敲门。
Por favor llama antes de entrar a la oficina.
オフィスに入る前にノックしてください。
사무실에 들어오기 전에 노크해 주세요.
I accidentally knocked the vase off the shelf.
我不小心把花瓶从架子上碰掉了。
Accidentalmente tiré el jarrón de la estantería.
私は誤って棚から花瓶を落としてしまいました。
실수로 선반에서 꽃병을 떨어뜨렸습니다.
There's someone knocking at the front door.
有人在敲前门。
Hay alguien llamando a la puerta principal.
誰かが玄関のドアをノックしています。
누군가가 현관문을 두드리고 있습니다.

Pronunciation

Usage Guide

Context: general

Tone: neutral

Origin & History

From Old English 'cnocian' meaning 'to strike with a sharp blow', of uncertain ultimate origin. Possibly imitative of the sound. The 'k' was originally pronounced; it became silent by the 17th century.

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal